A ___________________ provides a physical restraint to prevent equipment from being turned back on.
A. lockout device
B. tagout device
C. safety ground
D. zip tie
Answer: A
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Plants that have two copies of each chromosomes are:
a. diploids c. hexaploids b. polyploids d. tetraploids
Which type nut is used on top of a regular nut to prevent loosening of the fastener?
A) Castle nut B) Bead nut C) Jam nut D) King nut
Which RFID component powers the chip in the tag?
A. RFID interrogator B. RFID inactive tag C. Key fob D. NFC emitter
A signal x(t) is sampled above its Nyquist rate to form a signal x[n] and is also impulse sampled at the same rate to form an impulse signal x?(t) . The DTFT of x[n] is X(F) = 10 rect(5F) ? ?1(F) or X ( ej? ) = 10 rect (5?/2?) ? ?2? (?) .
(a) If the sampling rate is 100 samples/second, what is the highest frequency at which the CTFT of x(t) is nonzero? (b) What is the lowest positive frequency greater than the highest frequency in x(t) at which the CTFT of x?(t) is nonzero? (c) If the original signal x(t) is to be recovered from the impulse sampled signal x?(t) , by using an ideal lowpass filter with impulse response h(t) = A sinc (wt) , what is the maximum possible value of w?